London, England, present day. This is the world as we know it, but with one key difference: medical science has found a way to remove diseases from the sick. The catch? They can only transfer the diseases into other living humans. The government now uses the technology to cure the innocent by infecting criminals. When sixteen-year-old Talia Hale, daughter of a prime ministerial candidate, discovers that the effort to ensure that bad things happen only to bad people has turned a once-thriving community into a slum, and has made life perilous for two new friends, will she defy her father to protect them? Even if it means costing him the election?